Portable adjustable drawing board



March 11, 1941:

o. D. STALLINGS 2 2 4. 4

PORTABLE ADJUSTABLE DRAWING BOARD Filed Jan. 6, 1940 2 Sheets-Sheet 1 Jz' 14 /Z 2/ l A 'I' II l J Z/ J j 24 L i 3 i -/4 f2" Z J j Inventor0.17; 'jz aZzzb z as M y MW 5% Attorneys March 11, 1941.

O. D. STALLINGS PORTABLE ADJUSTABLE DRAWING BOARD Filed Jan 6, 1940 2Sheets-Sheet 2 A iidrneys Patented Mar. 11, 1941 UNITED STATES PATENTOFFICE 4 Claims.

This invention relates to a portable adjustable drawing board, thegeneral object of theinvention being to provide a board provided withmeans for clamping paper thereon, with a base to which one end of theboard is hinged and means for adjustably supporting the board from thebase so that the board can be positioned at difierent angles, with meansfor supporting a roll of paper between the board and the base.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which- Figure lis a plan View of the device.

Figure 2 is a bottom plan view with parts omitted and parts broken away.

Figure 3 is a side View with the board in an elevated position.

Figure 4 is a similar view with the board in lowered position.

Figure 5 is a view looking toward the rear of Figure 4.

Figure 6 is a section on the line 6-5 of Figure 5.

In these views the letter A indicates the base of the device and theletter B indicates the board which adjacent one end is hinged toan endof the base by the hinges l.

The board B includes the lower part 2 and the upper part 3, and saidpart 3 is of less length than the part 2 and the ends of the part 2 areformed by the strips 4 which are screwed or otherwise detachablyconnected with the end portions of the part 2. Wings 5 are provided forthe upper and lower edges of the part 2 and each wing has a tongue 6 onthe upper portion of its inner edge for fitting in a recess 1 formed inthe upper portion of each upper and lower edge of the part 2 when thewing is in closed position as shown in Figure 6. Each wing is formedwith hinge parts 8, each of which is pivoted to a hinge part 9 connectedto an outer portion of the part 2 and each hinge is of the spring typeas shown. A toothed member ID is carried by each part 8 and a springlatch l I is carried by a supporting part l2 carried by the part 2 forengaging the teeth, these latch means holding the wings 5 in loweredadjusted position as shown in dotted lines in Figure 6 and the springhinges tend to hold the wings in closed position as shown in full linesin Figure 6. These wings will hold a sheet 13 of paper or the like instretched condition over the part 3 for as the wings move to closedposition the tongues 6 pressing the paper into the grooves I willstretch that part of the sheet which passes over the part 3.

A covering sheet can be used to cover the part 3 when desired, thiscovering sheet being held in place by the detachable strips 4. As willbe seen the wings 5 when in closed or extended position will make thepart 2 longer than the part 3 so that a space is formed around the part3 which will accommodate the head of a T-square 15 or the like.

Lugs it having slots l5 therein are connected with the underside of thepart 2 for receiving a T-square and a large slotted lug I6 is connectedwith the bottom of the for facilitating carrying the device from placeto place.

Blocks I! extend upwardly from that end portion of the base A oppositethe end part carrying the hinge l and the upper ends of these blocks berolled thereon and by pulling the paper it can be unrolled therefrom,the sheet passing from the roll between the upper wing 5 and the upperedge of the part 2. These hinged blocks I 8 can be swung against theupper step of the blocks I1,

as shown in Figure 3, to hold the board B in raised position or it maybe supported in an intermediate position by engaging the blocks l8 witha lower step or said blocks l8 can be engaged with th short blocks 2dwhich are fastened to the base A and male spring clips 25 are carried 5by the base A at the outer ends of these blocks 24 for engaging thefemale spring clips 26 at the lower ends of the blocks i3 so as toyieldingly hold the board B in its lowest inclined position so as shownin Figure 4.

Thus it will be seen that I have provided a portable and adjustabledrawing board, the board portion of which can be adjusted to extend atdifferent slopes with means for facilitating holding the sheets of paperin clamped position therepart 2 to form avhandle 20 projects beyond a.block I8 'over and for carrying. a supply of paper under the board.

It is thought from the foregoing description thatthe advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts provided portionof the board and adjustable means for supporting the other end of theboard from the V adjacent end of the base.

2. A drawing board of the class described comprising a base part, aboard part hingedly connected to the base part at one end thereof,clamping wings connected with edge portions of the board, spring hingesfor holding the wings in closed position, each wing having a rib on itsinner edge andthe board having a groove for receiving the rib forclamping the paper over a portion of the board, adjustable means forsupporting the other end of the board from the adjacent end of the base,bearing blocks hingedly connected with the board, a shaft carried by thebearing blocks and adapted to receive a roll of paper.

3. A drawing board of the class described comprising a base, a boardpart, means for hinging the board part to one end of the base, a pair ofstepped blocks at the other end of the base, blocks hingedly connectedto the adjacent end of the board and-having their lower ends adapted toengage different steps for holding the board at different inclinations,a shaft carried by the hinged blocks for receiving a roll of paper andthe upper and lower edges of the board having grooves in the upperportions, wings having ribs for entering the grooves for clampingportions of the sheets between the wings and said edges of the board,spring hinges for connecting the wings tothe board and holding the wingsin extended position and latch means for holding the wings in positionseparated from the edges of the board.

4. A drawing board of the class described comprising, a board, the upperand. lower edges of the board having grooves in the upper portions, 22

wings having ribs for entering the grooves for clamping portions of thesheets between the wings and said edges of the board, spring hinges forconnecting the wings to the board and holding the wings in extendedposition and latch means {3 for holding the wings in position separatedfrom the edges of the board. ONNIE D. STALLINGS.

